我得到了同样的错误。不幸的是，这个错误是由于在docker push之前使用sudo造成的。此外，您可能需要从dockerhub中删除存储库，因为您可以拥有的repo数量是有限的。并且，请尝试docker注销，然后docker登录

如果您已经登录，如果您仍然得到错误。请按照步骤操作，

PS C:\Users\rohit\Docker> docker logout
Removing login credentials for https://index.docker.io/v1/

PS C:\Users\rohit\Docker> docker login
Login with your Docker ID to push and pull images from Docker Hub. If you don't have a Docker ID, head over to https://hub.docker.com to create one.
Username: rohithpoya
Password:*****************
Login Succeeded

Logging in with your password grants your terminal complete access to your account.
For better security, log in with a limited-privilege personal access token. Learn more at https://docs.docker.com/go/access-tokens/

PS C:\Users\rohit\Docker> docker push rohithpoya/mongo-enterprise:5                                                                                                                                                                       
The push refers to repository [docker.io/rohithpoya/mongo-enterprise]                                                                                                                                                                        83ee27b8fe98: Pushed

之前的答案都是正确的，我只是想补充一个我看到没有提到的信息;

如果项目是私有项目，要正确地推送映像，必须配置个人访问令牌或启用read_registry key的部署令牌。

来源:https://gitlab.com/help/user/project/container_registry using-with-private-projects

希望这是有帮助的(如果问题是张贴到目前为止的时间)

从应用程序登录。我一直在尝试从终端没有运气。

这是版本17.06.1

您可能需要在docker push之前将docker repo切换为private。

感谢Dean Wu提供的答案和ses的评论，在推送之前，请记得注销，然后从命令行登录到您的docker hub帐户

# you may need log out first `docker logout` ref. https://stackoverflow.com/a/53835882/248616
docker login

根据文件:

You need to include the namespace for Docker Hub to associate it with your account.
The namespace is the same as your Docker Hub account name.
You need to rename the image to YOUR_DOCKERHUB_NAME/docker-whale.

所以，这意味着你必须在推送之前标记你的图像:

docker tag firstimage YOUR_DOCKERHUB_NAME/firstimage

然后你就可以推它了。

docker push YOUR_DOCKERHUB_NAME/firstimage

修改图像名称为"username"/"image_name"